The introduction of long playing records in 1948
made better-sounding records possible. Better recordings in turn
sparked interest in better-quality sound equipment. This was the
beginning of mass-produced high-fidelity, or "hi-fi," equipment.
High fidelity meant extending the range of highs and lows, the
overtones that give music its rich musical presence. This hi-fi was
used in Champaign, Illinois, by Sally Spaulding. It has a
"cobra-headed" tone arm and plays 16, 33, 45, and 78 rpm records
that can be stacked 1" high on the spindle.